Question

ПОМОГИТЕ, ДАМ 35 БАЛЛОВ

Answer 1

1)0.5/0.5+√3/2*1-2*0.5=√3/2

2) 1*0-1*√3-1=-1-√3

3) 0.5/0.5+√3/2*1+2*0.5=0.5√3+2

4) sin1845°=sin(5*360°+45°)=°sin45°=√2/2

cos3990°=cos(11*360°+30°)=cos30°=√3/2

tg(-1500°)=-tg1500°=-tg(4*360°+60°)=-tg60°=-√3